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Other or unknownPart report

2018 Ram Promaster Other or unknown Problems

Complaints
7about this part
Share
18%of 38 total for the year
Median mileage
15,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 7 complaints about the other or unknown of the 2018 Ram Promaster, 18% of the 38 complaints for this model year. Where a mileage was given, the median is 15,000 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“There are 2 outstanding recalls with no response from dodge or dealer for: vb2/NHTSA 19v-818 (15nov2019) -engine cooling fan and w00/NHTSA 20v-036 (23 jan 2020) -shift cable recalls, the dealer larson dodge puyallup, wa has been unresponsive. I am still paying pymts and afraid to drive the van. There are no updates to the recall parts/corrective actions. There has been no other updates or correspondence from dodge re: these recalls and what I cancan't do with the van (drive it, or not; under what conditions, etc...).”

NHTSA complaint #11325763, filed 2020-05, 15,000 miles

“The 2018 Ram Promaster 1500 appears to have a manufacture defect with the Engine Coolant Reservoir bottle. Based on my research and due to the lack of national shortage of the OEM coolant reservoir replacement (even after market are out of stock), the reservoir has a soft spot on the tank which allows coolant to leak. The leak appears to be in the same location/spot with my leak in conjunction with others who are experiencing this issue.”

NHTSA complaint #11457106, filed 2022-03

“My vehicle is subject to open safety Recall 67C involving the cooling fan module and related fuse protection in the engine compartment. The recall has been open since October 2025. The manufacturer and dealer have confirmed that the remedy/parts are still not available and that there is no ETA for repair. At this time, I have not experienced an obvious operating failure with the vehicle itself. However, the open safety recall remains unresolved, and because no remedy exists yet, the recall cannot be completed. …”

NHTSA complaint #11733867, filed 2026-04

“As of approximately around the 15th of April 2023, we realized suddenly that our lithium battery in our 2019 Winnebago Travato was not being replaced with charging from our Volta alternator from driving or from our solar as it has always done. The KISAE DC to DC charger and the Volta system show an error message that they were/are ‘overheated’. Testing of the DC to DC charger shows that it’s receiving far over the correct voltage. Upon diagnostics at a RV dealership they found the alternator is being overcharged. …”

NHTSA complaint #11520227, filed 2023-05

“Vehicle Electronic throttle control had a malfunction and system went into limp mode on a highway at highway speeds of 70mph. The engine destroyed itself instead of limping. Lost power and almost got hit by a semi truck and other vehicles when this happened. Ended up getting a used engine due to current remanufacture costs etc. Total cost out of pocket because the dealership lied about my warranty and what was covered and for how long was around $7,000 parts lanor etc. Limp mode is dangerous and the way it happened on a highway could have gotten me or others seriously hurt or killed. …”

NHTSA complaint #11460771, filed 2022-04

Related service bulletins

Other or unknown: other model years

YearComplaintsShare of year
2025117%
2024218%
202366%
202257%
20212119%
2020921%
2019915%
2018718%
201735%
2016618%
201547%
201446%

Other parts of the 2018 Ram Promaster

Electrical system
11 complaints
Engine
11 complaints
Transmission and drivetrain
7 complaints
Visibility (wipers, defrost, mirrors)
4 complaints
Brakes
3 complaints
Steering
2 complaints
Body and structure
2 complaints
Tires
2 complaints
Air bags
1 complaints
Electronic stability control
1 complaints
Engine cooling
1 complaints
Exterior lighting
1 complaints

← All problems reported for the 2018 Ram Promaster

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology